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Stress-Ulcer Prophylaxis — Preventing GI Bleeding in the Critically Ill

Selective pharmacological prophylaxis to prevent mucosal injury, stress ulcers, and GI bleeding in intensive care.

Written by: Saygı Hospital Health Guide Editorial Board
Published: · Last updated:

This content is for general information; please consult your physician for diagnosis and treatment.

References (3)

This content is for informational purposes only and does not constitute medical advice. You can book an appointment at our Göğüs Hastalıkları department. Book Appointment →

What is Stress-Ulcer Prophylaxis — Preventing GI Bleeding in the Critically Ill?

Stress ulcers are superficial erosions and ulcers of the gastric/duodenal mucosa resulting from breakdown of the mucosal barrier during critical illness. Pathogenesis: mucosal hypoperfusion (shock), acid-pepsin excess, prostaglandin decrease, local inflammation. The incidence of clinically significant GI bleeding is 1.5-4% and falls to ~0.5% with prophylaxis.

Risk stratification (Cook 1994, ASHP 2020) — high risk = ≥1 major risk factor: mechanical ventilation >48 hours, coagulopathy (platelets <50 000, INR >1.5, aPTT >2×), or ≥2 minor risks: sepsis, ICU stay >1 week, high-dose steroids, history of GI ulcer, TBI/spinal trauma, severe burns, hepatic/renal failure.

Agent choice — PPI (pantoprazole 40 mg IV/day, lansoprazole, esomeprazole) offers more potent acid suppression and greater efficacy (ASHP recommended). H2 blockers (famotidine 20 mg IV twice daily; ranitidine withdrawn) are alternatives. Sucralfate (1 g orally 4× daily) is a mucosal protectant without acid neutralization — preferred when acid suppression is undesired.

Concerns about PPI overuse — meta-analyses suggest PPI may increase the risk of VAP (OR 1.2-1.5), C. difficile infection (OR 1.4-2), pneumonia, and osteoporosis-fracture. In patients leaving the ICU, stop PPI or reassess indication. SUP-ICU (2018) showed no mortality benefit of routine PPI in high-risk patients.

Symptoms

Routine risk assessment in the critically ill — mechanical ventilation, coagulopathy, sepsis, high-dose steroids, TBI, severe burns, organ failure
Melena or hematochezia — active GI bleeding requiring urgent endoscopy
Coffee-ground emesis (hematemesis) — upper GI source
Bloody drainage from the nasogastric tube — clinical clue for stress ulcer
Anemia (falling Hb) plus hemodynamic instability — occult/ongoing bleeding

Risk Factors

Mechanical ventilation >48 hours — the strongest independent risk factor
Coagulopathy — platelets <50 000, INR >1.5, aPTT >2× normal
Sepsis, septic shock, high-dose vasopressors
TBI (particularly subarachnoid hemorrhage), spinal-cord injury, burns >35% TBSA
History of GI ulcer/bleeding, high-dose corticosteroids (methylprednisolone >250 mg/day), hepatic failure, acute kidney injury

When to See a Doctor?

If you experience any of the following symptoms, seek medical attention promptly:

  • At ICU admission — routine risk assessment; only high-risk patients should receive prophylaxis
  • Suspicion of GI bleeding (melena, hematemesis, blood from NG) — urgent endoscopy and stabilization
  • Decision to continue prophylaxis — review when transferring from ICU to ward; stop if indication no longer exists

Treatment Methods

01
Risk assessment — Cook criteria to stratify high/low risk; low-risk patients do NOT require prophylaxis
02
High risk — PPI first choice: pantoprazole 40 mg IV/day or lansoprazole 30 mg IV/day. Alternative H2 blocker: famotidine 20 mg IV twice daily
03
Special situations — if PPI intolerance or acid suppression undesired, sucralfate 1 g oral/via tube 4× daily (mucosal protectant; does not neutralize acid; lower C. difficile risk than PPI)
04
If enteral nutrition has started — the enteral feed itself is mucosal protective (soft barrier); PPI indication weakens; reassess. Some evidence suggests enteral nutrition alone may be adequate for stress-ulcer prevention
05
Drug interactions — PPI: adverse interaction with clopidogrel (ischemic-event risk — particularly omeprazole/esomeprazole; pantoprazole preferred), decreased absorption of ketoconazole/antiretrovirals, decreased iron/B12 absorption with long-term use
06
De-escalation — when risk factors decrease (off ventilator, coagulopathy corrected) stop prophylaxis; avoid unnecessary extension (VAP, C. difficile risk)

Which Department to Visit?

You can visit our Göğüs Hastalıkları department for these complaints. Our specialist physicians will create the most suitable treatment plan for you.

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Health Disclaimer: The information on this page is prepared for general informational purposes only. It does not replace medical diagnosis and treatment. Please consult your physician for your complaints. Saygı Hospital does not accept responsibility for actions taken based on the information on this page.